External risk intelligence

Open ISES Tickets allow attackers to steal sensitive customer data or control services

CVE advisorySeverity: MEDIUM (CVSS 5.1)

CVE-2026-48213

Open ISES Tickets has a vulnerability allowing authenticated users to inject harmful code, potentially leading to session hijacking or stolen credentials if viewed by another user.

4Halo Surface Signal

Cross-site Scripting

External exposure likelihood

Halo Surface Signal score for CVE-2026-48213

The vulnerability exists in a ticket management system, which is commonly deployed as a web application accessible over the network. Reflected cross-site scripting in such applications is typically reachable via public-facing or internal web interfaces, fitting the profile of an application service where user interaction occurs through a browser.

Horizon Alert

Summary of the vulnerability and why it matters

This vulnerability allows authenticated users to inject malicious scripts into the Open ISES Tickets system. This could lead to unauthorized actions within the application if another user interacts with the compromised page.

  • Compromised user accounts.
  • Potential for unauthorized actions.

Attack Path

How an attacker could exploit the issue

An authenticated attacker can exploit this by crafting a malicious URL or POST request containing JavaScript in the `ticket_id` parameter. When a victim clicks the link or a legitimate administrator processes the request in `add.php`, the injected script executes within the victim's browser, potentially leading to session hijacking or credential theft.

  • Requires authenticated access.
  • Targets add.php `ticket_id` parameter.
  • Victim interaction with a crafted request.

Live Threat

Current exploitation, exposure, and threat context

This reflected cross-site scripting vulnerability in Open ISES Tickets is unlikely to be widely weaponized by opportunistic attackers. While it allows authenticated attackers to inject JavaScript, the requirement for authentication limits its appeal compared to vulnerabilities exploitable by unauthenticated users. The impact is generally confined to the victim's browser session, which can be further mitigated by browser security features.

  • Requires user authentication.
  • No observed public exploit.
  • CVE published recently.

Priority actions

Operational Fix

Recommended remediation, mitigation, and detection steps

Prioritize patching Open ISES Tickets to version 3.44.2 to address the reflected cross-site scripting vulnerability. If immediate patching is not feasible, implement web application firewall (WAF) rules to block requests containing suspicious JavaScript payloads in the `ticket_id` POST parameter. Monitor logs for indicators of compromise related to this vulnerability.

  • Update Open ISES Tickets to 3.44.2.
  • Deploy WAF rules for `ticket_id` parameter.
  • Monitor for suspicious POST requests.

Frequently asked questions

What is Open ISES Tickets?

Open ISES Tickets is a system used for managing and tracking support requests or issues. It allows authenticated users to log, update, and process tickets, typically within a business or customer service context.

How does CVE-2026-48213 affect Open ISES Tickets?

CVE-2026-48213 is a reflected cross-site scripting (XSS) vulnerability. It means that an attacker can trick a user into running malicious JavaScript in their browser by injecting it through the `ticket_id` parameter in the `add.php` file.

What is needed to exploit this vulnerability?

An attacker must first be authenticated with access to the Open ISES Tickets system. They then need to craft a special request containing JavaScript in the `ticket_id` POST parameter, which a victim user or administrator must process.

Who should be concerned about CVE-2026-48213?

Organizations using Open ISES Tickets should be concerned, especially if the system is internet-facing. This is because authenticated users within or outside the network could potentially exploit it to impact other users' sessions.

What is the first step to address this threat?

The primary recommendation is to update Open ISES Tickets to version 3.44.2 or later. If immediate patching isn't possible, consider implementing security rules on a web application firewall to filter malicious code in the `ticket_id` parameter.

References